Constructing a parallel aligned shish kebab structure of HDPE/BN composites: Toward improved two-way thermal conductivity and tensile strength

Inspired by the clam-shell structure of pearls, we fabricated thermally conductive high-density polyethylene (HDPE) reinforced by a 2D filler, boron nitride (BN). SEM images showed only lamellae randomly distributed in unshared HDPE samples, whereas a shish-kebab structure was introduced by utilizing an in-house designed rotational shear system. XRD results indicate the BN (002) plane is parallel to the sheared direction. Due to the interconnected shish-kebab structure and aligned BN (002) plane, the Vicat softening temperature was increased from 82.8 °C to 107.9 °C, demonstrating excellent heat resistance under high temperatures. An optimal thermal conductivity of 1.26 W/mK was found at 35 vol% BN loading with a tensile strength of 40 MPa. This work has utilized external force to manufacture HDPE/BN composites with effective thermal dissipation and higher service temperature. The excellent thermo-mechanical properties mean a longer service time and less replaced frequency of material under extreme operating conditions.

Files

Metadata

Work Title Constructing a parallel aligned shish kebab structure of HDPE/BN composites: Toward improved two-way thermal conductivity and tensile strength
Access
Open Access
Creators
  1. Bin Chen
  2. Jiawei Gong
  3. Wei Huang
  4. Ning Gao
  5. Cong Deng
  6. Xueqin Gao
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Composites Part B: Engineering
Publication Date June 15, 2023
Publisher Identifier (DOI)
  1. https://doi.org/10.1016/j.compositesb.2023.110699
Deposited November 18, 2024

Versions

Analytics

Collections

This resource is currently not in any collection.

Work History

Version 1
published

  • Created
  • Added 1-s2.0-S0266353810000035-main.pdf
  • Added Creator Bin Chen
  • Added Creator Jiawei Gong
  • Added Creator Wei Huang
  • Added Creator Ning Gao
  • Added Creator Cong Deng
  • Added Creator Xueqin Gao
  • Published
  • Updated